Pap Smear · Pathology

In a Pap smear, what is the significance of 'koilocytes'?

  1. They are a sign of bacterial vaginosis
  2. They indicate normal atrophic changes in postmenopausal women
  3. They are pathognomonic for Human Papillomavirus infection
  4. They represent severe iron-deficiency anaemia in young women
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Correct answer: They are pathognomonic for Human Papillomavirus infection

Koilocytes are squamous epithelial cells that have undergone structural changes due to HPV infection, characterized by nuclear enlargement, hyperchromasia, and a prominent perinuclear halo. Their presence is the cytological hallmark of Low-grade Squamous Intraepithelial Lesions (LSIL).

Difficulty: Medium Question 2 of 20

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